For those who are wondering what choke to use on their shotgun for coyote hunting if they are using hevi shot,this is what I ended up with.
I use a PURE GOLD turkey choke .670 I called all around and even called hevi shot what I found out was that hevi shot dead coyote loads like an extra tight choke for its best pattern.
The proof was when we blasted a yote the other day at 75 yds.
Griz

Carlson makes a good choke called Dead Coyote. Used it with Dead Coyote "T" shot in my 870 and was really suprised with the results. More killing hits at 35-40 yards than anything I had previously used. Found it in The Sportsman's Warehouse.

From what i have seen and read, Indian Creek makes an awesome choke for hunting yotes. A buddy of mine shot one at 90 yards with one. I havent personally used one, but i have used Indian Creeks duck and turkey chokes, and the turkey choke can shoot 70+ yards fairly accurate. Indian Creek seems to make quality products.